templates.py 文件源码

def get_template_source(name, dirs=None):
    """Retrieves the template's source contents.

    :param name: Template's filename, as passed to the template loader.
    :param dirs: list of directories to optionally override the defaults.
    :return: tuple including file contents and file path.
    """
    loaders = []
    for loader in Engine.get_default().template_loaders:
        # The cached loader includes the actual loaders underneath
        if hasattr(loader, 'loaders'):
            loaders.extend(loader.loaders)
        else:
            loaders.append(loader)

    for loader in loaders:
        try:
            return loader.load_template_source(name, template_dirs=dirs)
        except TemplateDoesNotExist:
            pass

    raise TemplateDoesNotExist(name)